This was caused by me adding a little bit of alcohol to the water, which disrupts the hydrogen bonding force and dramatically reduces the force of the inter-molecular forces – and therefore the surface tension. Surface Tension of Ethanol.
Surface tension and surface energy are measurements of intermolecular forces that make up a material.
Pure alcohols or alcohols mixed with water are the most widely used solvents in a great variety of industrial applications, including the formulation of pharmaceutical and cosmetic products. Surface Energy. Surface tension is caused by the inward attraction of molecules at a boundary. However, surface tension is ~ 1/3 in alcohols compared to that of water because of their very week polar nature.
Two models were used to describe the surface tension and interfacial composition of (water + methanol), (water + ethanol), (water+1-propanol), and (water + monoethylene glycol) binary mixtures. Density, viscosity, and surface tension of liquids are important physicochemical properties which affect mass and heat transfer in solutions. Component The experimental data shown in these pages are freely available and have been published already in the DDB Explorer Edition.The data represent a small sub list of all available data in the Dortmund Data Bank.For more data or any further information please search the DDB or contact DDBST.. Surface tension is a manifestation of the presence of the hydrogen bond. As a result of water/alcohol molecular associations, variations result in the physico-chemical characteristics of the system, such as density, viscosity, refractive index and surface tension.
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